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Yihong ZhaiYZ

Yihong Zhai

Software Engineer

€380/day
Chemnitz, DE
0-2 years

Average response time: 1 hour

About Yihong

I am a software engineer based in Germany, specialising in automation, backend development, and AI-enabled workflows for business operations.

I help companies and teams reduce manual work and improve reliability by designing clean, pragmatic systems — from data processing and API-driven backends to AI-assisted automation and internal tools. My focus is always on solutions that are easy to operate, well-documented, and ready for real-world use rather than prototypes.

My technical background includes Python (FastAPI), JavaScript (Node.js, React), SQL/MySQL, and workflow automation using modern tooling. I frequently work on tasks such as data cleaning and enrichment, system integrations, process automation, and AI-assisted decision support.

I value clear communication, structured problem-solving, and realistic delivery timelines. Clients typically work with me when they need a reliable engineer who can quickly understand business requirements and turn them into maintainable technical solutions.

I am open to short- and mid-term projects, especially in automation, internal platforms, and AI-assisted business workflows.
  • German

    Native or bilingual

  • English

    Native or bilingual

  • Chinese

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • TU Chemnitz
    Software Engineer – Automation & AI Workflows
    DIGITAL AND IT
    January 2024 - Today (2 years and 5 months)
    Chemnitz, Germany
    • Designed and implemented automation and backend solutions for internal business workflows and data-driven use cases.
    • Built Python-based APIs and services (FastAPI) to process, clean, and enrich structured datasets.
    • Developed AI-assisted automation flows for classification, enrichment, and decision support, with a focus on reliability and explainability.
    • Integrated external services and APIs, handling validation, error cases, and logging.
    • Delivered clear documentation and maintainable solutions tailored for real operational use.
    Python FastAPI automation API Integration Data Processing
  • TU Chemnitz
    Software Engineer
    January 2024 - Today (2 years and 5 months)
    Chemnitz, Germany
    • • Designed and implemented a full-stack management system using Python
    • • Developed backend logic for data management and business workflows
    • • Built web-based interfaces for system interaction and administration
    • • Focused on clean structure, modular design, and maintainability
    • • Implemented RESTful APIs and database integration for CRUD operations
  • TU Chemnitz
    Research Assistant / Software Engineer (Simulation & Data Analysis)
    DIGITAL AND IT
    October 2023 - May 2024 (7 months)
    Chemnitz, Germany
    • Developed simulation and data analysis tools using Python to support research projects in networking and systems engineering.
    • Designed modular, reusable code for discrete-event simulations and performance evaluation.
    • Processed and analysed structured datasets, producing reproducible results and technical reports.
    • Collaborated with academic and technical stakeholders to translate requirements into implementable software components.
    Python Data Processing Simulation Software Engineering

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Education

  • Master's degree
    Technische Universität Chemnitz
    2025
    Master's degree

Skill set

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